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Biology 155 Exam 1 Questions And Answers 100% Pass

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Biology 155 Exam 1 Questions And Answers 100% Pass Cells - ANS the smallest living unit that is alive; "building blocks" of life Molecular Biology - ANS the study of macromolecules The 4 Macromolecules - ANS carbohydrates lipids nucleic acids proteins Nucleic Acids - ANS DNA & RNA Characteristics of Electrons - ANS negative charge orbit the atom in shells #electrons= #protons (except in an ion) Atoms - ANS the smallest amount of an element Characteristics of Protons - ANS positive charge inside the nucleus ©EVERLY 2025 ALL RIGHTS RESERVED atomic number = # of protons Characteristics of Neutrons - ANS no charge found in the nucleus Valence Electrons - ANS found in the outermost shell Compound - ANS two (or more) different atoms joined together Electron Amounts Shells Can Hold - ANS first shell: 2 second and third: 8 Molecule - ANS two (or more) atoms joined together Characteristics of Ionic Bonds - ANS bonds among ions involve electron donation opposite charges attract Characteristics of Covalent Bonds - ANS involve electron sharing polar or non polar Polar Covalent Bond - ANS unequal sharing of electrons Non Polar Covalent Bond - ANS equal sharing of electrons Cause of Polarity - ANS electronegativity

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©EVERLY 2025 ALL RIGHTS RESERVED

Biology 155 Exam 1 Questions And Answers
100% Pass

Cells - ANS the smallest living unit that is alive; "building blocks" of life

Molecular Biology - ANS the study of macromolecules

The 4 Macromolecules - ANS carbohydrates
lipids
nucleic acids
proteins

Nucleic Acids - ANS DNA & RNA

Characteristics of Electrons - ANS negative charge
orbit the atom in shells
#electrons= #protons (except in an ion)

Atoms - ANS the smallest amount of an element

Characteristics of Protons - ANS positive charge
inside the nucleus

, ©EVERLY 2025 ALL RIGHTS RESERVED

atomic number = # of protons

Characteristics of Neutrons - ANS no charge
found in the nucleus

Valence Electrons - ANS found in the outermost shell

Compound - ANS two (or more) different atoms joined together

Electron Amounts Shells Can Hold - ANS first shell: 2
second and third: 8

Molecule - ANS two (or more) atoms joined together

Characteristics of Ionic Bonds - ANS bonds among ions
involve electron donation
opposite charges attract

Characteristics of Covalent Bonds - ANS involve electron sharing
polar or non polar

Polar Covalent Bond - ANS unequal sharing of electrons

Non Polar Covalent Bond - ANS equal sharing of electrons

Cause of Polarity - ANS electronegativity

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